The Babysitter: Killer Queen (2020) Plot Summary & Ending Explained

Two years have passed since the chilling events of the first film, and now Cole, played by Judah Lewis, is navigating the challenges of junior year in high school. Despite his desperate attempts, he can only convince his closest friend, Emily Alyn Lind as Melanie, that a satanic cult, once led by his former babysitter, Samara Weaving as Bee, truly attempted to take his life. Just when things couldn't seem bleaker, Cole discovers that his parents have enrolled him in a psychiatric school. In a daring escape, he teams up with Melanie, her new boyfriend Jimmy, and their friends Boom-Boom and Diego, seeking a reprieve at a lake party.

At the vibrant gathering, Cole catches sight of the new student Jenna Ortega as Phoebe, who mysteriously finds a childhood stuffed toy along with directions to the lake tucked in her locker. The atmosphere shifts drastically when, during a party game on a boat, tragedy strikes as Melanie brutally kills Boom-Boom. In a shocking revelation, Melanie confesses to Cole that she joined the cult to chase her dreams of fame, with both Jimmy and Diego revealed as fellow cult members. They require another innocent's blood to continue their dark rituals, having already bloodyed Boom-Boom in their sacrifice.

The original cultists: Hana Mae Lee as Sonya, Bella Thorne as Allison, Robbie Amell as Max, and Andrew Bachelor as John reappear, resurrected for a sinister ritual that demands their participation before sunrise or risk death. As the chaos unfolds, Phoebe fortuitously arrives asking for gas for her jet ski, granting Cole a brief moment to escape the cult's clutches.

On land, Cole shares his harrowing story with Phoebe, who surprisingly believes him, as the cultists pursue them relentlessly. The first confrontation with Sonya ends in a brutal accident, running her over with a stranger's car. The stakes rise when they confront Allison and manage to trap her, leading to a violent showdown. Shortly after, as they attempt to sail away on a boat, Max makes a desperate move to latch on, only for Phoebe to ignite a blaze using silly string, while Cole brutally defends them with the boat's propeller.

As the cultists Diego and Jimmy ignite into nothingness upon reconsidering their chase, Cole and Phoebe find refuge in Phoebe’s old family cabin, a location guided by a cryptic message she received. Inside the bunker, Phoebe unveils her tragic story—her parents died due to a car accident she caused. Cole supports her through this painful revelation, and their bond deepens as they share an intimate moment.

Meanwhile, Melanie, plotting to lure Cole out, fakes being intoxicated while speaking to Cole’s father, Ken Marino as Archie, who frantically searches for them. When chaos ensues, Cole and Phoebe come out armed, resulting in a series of accidents and confrontations that pit them against their former friends turned foes.

In a tension-filled climax, Cole faces Archie, while Melanie seeks revenge on Phoebe. After regaining his senses, Cole takes control by locking Archie out of the car, racing back to save Phoebe. At the lake, Melanie holds Phoebe hostage, but Cole steps forward, offering himself as the next sacrifice. The plot thickens with the arrival of Bee, revealed as Phoebe's babysitter and responsible for the tragedy in her past. Flashbacks unveil Bee's Faustian bargain to save Phoebe's life.

As the cultists partake in the ritual, everything goes awry due to Cole’s lost innocence from his encounter with Phoebe. Their plan backfires spectacularly, leading to the disintegration of the cult members. Devastated yet reformed, Bee drinks the mixture, sacrificing herself to ensure that Cole and Phoebe triumph over the malevolence of the cult she originally aligned with.

In a poignant moment of reconciliation, Archie's newfound belief in Cole's experiences paves the way for their escape. As the dawn breaks, Cole and Phoebe seal their bond with a kiss, marking a hopeful transition. The film hints at lingering darkness with a mid-credits scene, revealing Bee's demon book, ominously left untouched on the sand.

After the chaos of the ritual, those tied to its dark magic disappeared, likely returning to Hell forever, which is a relief from the demonic teenagers hunting Cole. Despite that, the ending feels bittersweet because Bee, who seemed to have orchestrated everything to tie up loose ends, only appears briefly to say a heartfelt goodbye to Cole and Phoebe. She seems genuinely happy to see them safe and to see Cole with someone who cares for him, indicating some degree of remorse or at least a desire for redemption. The book used to start the ritual, however, remains intact and fluttering in the breeze after everything else has vanished, suggesting it still exists and holds power—its fate uncertain, and it could be used again in the future.

In the aftermath, it seems like things are returning to normal—Cole's father finally remembers what happened, and Cole appears to have found some peace, no longer labeled as crazy. However, the reality is more complicated. Cole’s social struggles likely haven't disappeared; his reputation and the suspicions surrounding the ritual could lead to another investigation, especially since other bodies from the ritual are still out there. Phoebe, who survived because of Bee’s intervention, can corroborate his story, but without widespread belief, Cole might still face isolation and ridicule in high school, especially with Phoebe's unconventional entry into his class. His chances of escaping this cycle until college seem slim, leaving open the possibility for future movies where the story might continue.